使用/添加正则表达式(?)将HTML表格导出到Excel在函数中？

function exportToExcel() {
  // 获取HTML表格数据
  var table = document.getElementById('tableId');
  var rows = table.getElementsByTagName('tr');

  // 解析HTML表格数据
  var data = [];
  for (var i = 0; i < rows.length; i++) {
    var cells = rows[i].getElementsByTagName('td');
    var rowData = [];
    for (var j = 0; j < cells.length; j++) {
      rowData.push(cells[j].innerText);
    }
    data.push(rowData);
  }

  // 创建Excel文件
  var workbook = XLSX.utils.book_new();
  var worksheet = XLSX.utils.aoa_to_sheet(data);
  XLSX.utils.book_append_sheet(workbook, worksheet, 'Sheet1');

  // 导出Excel文件
  var excelBuffer = XLSX.write(workbook, { bookType: 'xlsx', type: 'array' });
  var blob = new Blob([excelBuffer], { type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' });
  var url = URL.createObjectURL(blob);
  
  // 添加下载链接
  var downloadLink = document.createElement('a');
  downloadLink.href = url;
  downloadLink.download = 'table.xlsx';
  document.body.appendChild(downloadLink);
  
  // 触发下载
  downloadLink.click();
}